Add the rolled oats, chocolate protein powder, chia seeds, and unsweetened cocoa powder to a mason jar or airtight container large enough to comfortably hold all ingredients.

Pour in the unsweetened almond milk and add the plain non-fat Greek yogurt, natural peanut butter, and vanilla extract.

Using a spoon or small whisk, stir the mixture thoroughly until all ingredients are fully combined. Continue mixing until the protein powder and cocoa powder are completely dissolved and the peanut butter is evenly incorporated throughout the oats.

Scrape down the sides and bottom of the container to ensure there are no dry pockets of oats, protein powder, or chia seeds remaining.

Secure the lid tightly on the mason jar or container to maintain freshness and prevent the oats from absorbing odors from the refrigerator.

Place the sealed container in the refrigerator and allow it to chill overnight or for at least 6 hours. During this time, the oats will soften, the chia seeds will absorb liquid and thicken the mixture, and the flavors will blend together.

Remove the overnight oats from the refrigerator before serving and stir thoroughly to redistribute the ingredients and restore a creamy consistency.

If the oats have thickened more than desired, add a small splash of almond milk and stir until you reach your preferred texture.

Taste and adjust if desired by adding optional toppings such as sliced bananas, chopped peanuts, dark chocolate chips, or an extra drizzle of peanut butter.

Serve chilled and enjoy a rich, satisfying high-protein breakfast that supports energy, fullness, and muscle recovery throughout the day.